Automatic speed-controller and stop mechanism for piano-playing attachments.



E. T. TURNBY.

AUTOMATIC SPEED CONTROLLER AND STOP MECHANISM POR PIANO PLAYING ATTACHMENTS.

APPLICATION HLBDFBBJS, 190s, l

Patented Mar. 31

3 SHEETS-SHEET l.

E. T. TURNEY.

AUTOMATIC SPEED CONTROLLER AND STOP MBGHANISM POR PIANO PLAYING ATTAGHMBNTS.

APPLICATION FILED PEB.28, 1908. 1,09 1,71 9. Patented m1311914.

3 SHEETS-SHEET 2.

@o Y @E 4f.

E. T. SITURNBY.` l AUTOMATIC SPEED CONTROLLER AND STOP MBGHANISM FOR PIANO PLAYING ATTAGHMENTS.

APPLICATION FILED PEB-28, 1908.

Patented Mar. 31, 1914,

3 SHEETS-SHEET 3.

"UNTTED sTATEs i* PATENT oFFroE.

T. TURNEY, OF ROCK ISLAND, ILLINOIS, ASSIGNOR TO ARTISTA PIANO PLAYER COMPANY, OF ROCK ISLAND, ILLINOIS, A CORPORATION OF ILLINOIS.

AUTOMATIC SPEED-CONTROLLER AND ySTOP MECHANISM FOR PIANO-PLAYING ATTACHMENTS.

Application led February 2B, 1908.

To all whom it may conce/m Be it known that I, EUGENE T. TURvnv,I

and State of Illinois, have invented certain` new and `useful Improvements in Automatic Speed-Controllers and Stop Mechanism for Piano-Playing Attachments, of which the following is a specification.

This invention relates to improvements in automatic speed controllers and stop mechanism for piano playing attachments, in which is employed a plurality of pneumatic actions adapted to be controlled by the music sheet or record, an improved pneumatic motor for operating the record, the motor being adapted to be operated by ex- Ahausting the air therefrom, and the speed of the motor being regulated by controlling the exhaust or suction therefrom, and the primary object of the invention is to proaide improved means whereby the speed of the motor will be controlled by the record.

further object is to provide improved means whereby the motor may be set to operate at a predetermined rate of speed, and improved means whereby the rate of speed of the motor may be controlled and automatically adjusted by the record as it is fed upon the receiving roll and as the diameter of the receiving roll is increased by the record being wound thereon, whereby the record will be moved at a uniform rate of speed throughout its entire length across the tracker board.

, A. further object is to provide improved means for preventing the feeding mechanism from being thrown out of operation until the end of the piece is reached, and for automatically throwing the record feeding mechanism out of operation at the end of the piece.

A further object is to provide an improved device of this character which will be simple, durable and cheap in construction and eHective and eicient in operation.

To the attainment of these ends and the accomplishment of other new and useful objects as will appear, `the invention consists in the features of novelty in the construction, combination and arrangement of the several parts hereinafter more fully described and claimed, and shown in the ac-4 Specication of Letters Patent.

Patented Mar. 31, 1914.

Serial No. 418,368.

companying drawings illustrating an embodiment of the invention, and in which- Figure 1 is a detail elevation of an improved device of this characterconstructed in accordance with the principles of this invention. Fig. 2 is a detail perspective view of the equalizing mechanism for the motor. Fig. 3 is a detail sectional view on line 3 3 of Fig. 1, looking' in the direction of the arrows. Fig. f1 is a detail sectional view of the air duct or channel which controls the pneumatics, showing the relief valve therefor'. Fig. 5 is a detail eleva-tion taken on line 5 5 of Fig. 1, looking in the direction of the arrows.- Fig. 6 is a detail sectional view on line 6 6 of Fig. 1. Fig. 7 is a detail perspective view of the adjustable stop. Fig. 8 is a detail sectional view on line 8 8 of Fig. 1. Fig. 9 is a detail sectional view on line 9 9 Of Fig. 5. Fig. 10 is a sectional view of the equalizer, taken above the controlling valve therein.

Referring more particularly to the drawings and in the present exemplification of the invention, the numeral 20 designates suitable air ducts or channels which are adapted to be exhausted in the ordinary and well-known manner, and supported by and communicating with these air ducts or channels are pneumatic actions 21, which latter also have communication with suitable apertures in the tracker board 22 by means of the flexible tubular members 23, so that when the apertures in the record 24. pass across the apertures in the tracker board, the respective pneumatics 21 will be collapsed to operate the piano action to sound the notes.

Supported within the framework of the casing of the instrument in any desired or suitable manner is a record supporting frame 25, in which is journaled the record roll 2G, and the 'record receiving roll 27 the latter being provided with a gear 28 on one extremity with which a suitable pinion 29 on the extremity of a flexible shaft meshes, and this shaft 30 is rotated by means of a pneumatic motor 31 provided with a shaft 32 operated therefrom, and which shaft is connected to the flexible shaft 30 by means of intermeshing gears 33.

Supported by a stub shaft in the record clutch member' 35 which is provided with a laterally projecting lug 36.

A member 37 supported by the record supporting frame 25 for movement both longitudinally and laterally and is of a length substantially equal to the height of the frame and is provided with a pin and slot connection 37n 37b, the slot being inclined for a purpose to be set forth. The flexible shaft 30 is adapted to pass loosely through one extremity of this member 37, and journaled adjacent the other extremity is a stub shaft 38, to one extremity of which is secured a clutch member 39 which is adapted for rotation with the stub shaft, and projecting laterally from the clutch member 39 is a projection 40 which is adapted to engage and cooperate with the projection 36 on the clutch member 35, so that when the member 37 is moved longitudinally within the record supporting frame 25, the pin having inclined slot connection 37a 37b with the frame will cause the member 37 to be also shifted laterally, so that the clutch member 39 will be brought adjacent the clutch member 35, and when the stub shaft 38 is rotated, the lateral projections 36, 40 will be brought into engagement to impart the rotation of the stub shaft 38 to the roller 26. The specific construction and operation of the clutch mechanism, however, forms no part of the present invention, but constitutes a portion of the subject matter of my application Serial Number 394,020, filed in the United States Patent Oflice September 23, 1907.

Secured for rotation with the exible shaft 30 is a sprocket wheel 4l, and passing over said sprocket wheel is a sprocket chain 42 which also passes over a suitable sprocket i3 on the stub shaft 38, and this sprocket chain 42 is of such a length that when the member 37 is raised to cause the pinion 29 to mesh with the gear 28, the sprocket chain will be loose, but when the flexible shaft 30 is shifted and the member 37 is lowered to move the pinion 29 out of engagement with the gear 28, the sprocket chain 42 will be tightened and the motion of the shaft 30 will be imparted through the sprocket chain to the stub shaft 38, and through the medium of the clutch members 34, 39 to the roll 26.

Any suitable means may be provided for automatically shifting the shaft 30. A suitable and efficient means for accomplishing this purpose comprises a pneumatic 44, which has communication through the port or passage 45 with the air duct or channel 20, vand also has communication with an aperture 46 in the tracker board 22 through the medium of the tubular flexible member 47, and the pneumatic 44 is of such a construction that when an aperture in the record 24 passes over the aperture 46, the pneumatic will be collapsed under the influence of the suction in the air duct or channel 20, and when so collapsed will also operate the member 37 and move the shaft 30 to throw the pinion' 29 out of mesh with the gear 28 through the medium of a rod or bar 48, one end of which passes over and has engagement with the shaft 30, and the other end pivotally connected to an arm or projection 49 which is secured to and movable with the movable member 50 of the pneumatic 44. The specific construction of the pneumatic 44 and the pneun'iatics 2l forms no part of the present invention, and these pneumatics are preferably of the type forming the subject matter of an application filed b v me in the United States Patent Oflice, Serial No. 331,740 on August 23, 1906.

The motor 3l is adapted to be operated by exhausting the air therefrom through the tubular flexible member 5l by means of a suitable suction device (which latter is not shown), and which is separate from the mechanism which exhausts the air ducts or channels 20.

Any suitable means may be provided for equalizing the exhaust from the motor whereby the speed thereof may be varied `without interfering with the operation of the other parts of the mechanism. A suitable and eflicient means for accomplishing this purpose comprises an equalizer designated generally by the reference numeral 52, and which will now be described, but the specific construction and operation of which forms no part of the present invention, but forms the subject matter of an application Serial No. 404,025, filed by me in the United States Patent Office, November 27th, 1907. This equalizer comprises a chamber which may be of any desired size and configuration, and is divided by a horizental partition 53 to form an upper air channel 54 and a lower air channel 55, and secured to one extremity of the casing is a housing 56 which is also divided by a horizontal partition 57 into an upper compartment 58 and a lower compartment 59, and these compartments have communication respectively through the apertures 60, 6l in the wall thereof, with the upper and lower air channels 54, 55 in the casing 52, and the partition 57 is provided with an aperture 62, which affords communication between the upper and lower compartments 58, 59 in the housing 56. A valve 63 is arranged within the compartment 58 to close the aperture 62. The compartment 59 is provided with an aperture 64 in one of the end walls thereof, which has communication with the outside air, and a conical valve 65 is provided for closing the aperture 64, and this valve 65 is supported by the valve 63 and adapted for movement therewith by means of an arm or connection 66, one extremity of Which passes through the aperture 64 and is secured to the valve 65, and the valve 65 is so arranged With relation to the, aperture 64 that when the valve 63 is adjusted to uncover the aperture 62, the enlarged portion of the valve 65 Will be moved toward the aperture 64 to close the latter and When the valve 63 is moved to cover the port 62, the valve 65 will be moved so that the Smaller portion thereof Will stand adjacent the aperture 64 to permit the compartment 59 to have communication with the outside air. Secured to the other extremity of the casing 52 and preferably on the side opposite to that on which the housing 56 is secured, is a housing 67 Which is divided by a horizontal partition 68-into an upper channel 69 and a lower channel 70, which have communication respectively through the apertures 71, 72 in the Wall of the casing 52, with the upper and lower channels 54, 55 in the casing 52. The channel 69 is provided with an opening 73 to which a suitable tubular member 74 is Secured, and by means of which the free extremity of the iiexible member 51 which extends from the motor is connected, and the channel is provided with an opening to which a. tubular member 75 is secured, and to Awhich is connected the flexible member 76, which is connected or has communicat-ion with the exhaust mechanism. With this improved construction of equalizer, When the valve 63 is adjusted to open the port 62 and the valve 65 closes the aperture 64, suction created in tubular member 76 will draw the air from the motor through the tubular member 51, t-he air channel 69 in the direction indicated by the arrows, through the aperture 71, air channel 54, aperture 60 into the compartment 58, through the aperture 62 into the compartment 59, through the aperture 61 into the air duct 55, through the aperture 72, through the air duct 70 and to the exhaust mechanism, and When the valve 63 is adjusted to restrict the aperture 62, the valve 65 Will be correspondingl adjusted to permit the amount of air which has been cut oif by the valve 63 to be supplied by the outside air. The valve 63 may be operated by means of a suitable bar or rod 77 which extends through one Wall of the housing 56 and is connected by one extremity to the valve 63. The other extremity is connected to an arm or lever 78 Which is pivotally supported, as at 79, by any portion of the casing, and a spring or yielding member 80 is provided for normally holding the arm or lever 78 in a position to seat the valve 65.

A pneumatic 81, similar in construction to the pneumat-ics 21, 44, is provided adjacent the regulator and has communication through the port 82 to the air duct or channel 20, and a bar or rod 83 is connected by one extremity to the movable member of the pneumatic 81, and by the other extremity to the arm or lever 78, so that When theV pneumatic 81 is collapsed through the suction in the air duct or channel 20, the bar or rod 83 Will move the arm or lever 78 against the tensionbf the spring 8O to cause the valve 63 to close the port 62 and unseat the valve 65. f

A pneumatic 84 may be supported in any suitable manner, and has communication through the tubular member 85 With the air duct or channel 55 in the casing 52, and a tubular member 86 also has communication Wit-h the pneumatic 84, and the tubular member 87 supported by the record hold ing frame 25, and this tubular member 87 is adapted to be closed by the extremity 88 of the member 37 When the latter is moved to the position shown in Fig. 1 of the drawings, and when the member' 37 is shifted by the pneumatic 44 in the manner already set forth, the member 37 will be depressed and the extremity 88 will uncover the tubular member 87 to permit the pneumatic 84 to be collapsed.

The air duct or channel 20 is provided with an aperture 89 opening to the outside air, and a valve 90 is secured to the air duct or channel 2() by a flexible member 91, such leather or the like, and the valve 90 is arranged to cover the aperture 89 in the air duct or channel. One extremity 92 of the valve 90 extends beyond the air duct or channel 20 and terminates adjacent the pneu matic 84. An arm 93 is secured to the movable member of the pneumatic 84 and is adapted to engage the extremity 92 of the valve 90 when the pneumatic 84 collapsed, and when the arm 93 engages the extremity 92 of the valve, a further collapsing' of the pneumatic 84 will cause the arm 93 to unseat the valve 90 to permit the outside air to enter the air duct or channel 20 thro-ugh the aperture 89 to relieve the suction therein and to prevent the operation of the pneumatics 2l on the piano act-ions and keys While the record 24 is being revvound on the spool or roller 26.

Y A suitable spring 94 may be secured by one extremity to the record supporting frame 25 and by the other extremity to the flexiblev shaft 30, so as not to interfere with the rot-ation thereof. An arm 95 is pivot-ally supported by one extremity to the record supporting frame 25 and loosely engages the shaft 30. The extremity of the arm beyond the shaft 30 is provided with a shoulder 96, and a latch 97 is pivc-tally ysupported adja cent'the end of the arm and coperates with the shoulder 96 by means of a suitable elastic member 98, such as a spring or the like, so that When the shaft 30 is lowered in the manner already set forth, a tension will be exerted on the spring 94, and the free extremity of the arm will be lowered so that the elastic member 98 will force the end of the latch 97 into a position to engage the shoulder 9G to lock the shaft 30 on the arm 95 in its adjusted positions. Pivotally supported in the record frame 25 is a rock shaft 99 which is provided with a laterally projecting arln or iinger 100, arranged adjacent the record receiving roller 27, and a spring 101 may be provided for normally holding the arm or finger 100 in engagement with the periphery of the receiving roller 27. The rock shaft 99 is also provided with a lateral. projection 102. which is arranged adjacent the .latch 97 and is adapted to engage an adjustable member 103 on the extremity of the latch when the arm or {inger 100 is in engagement with the periphery of the roller 27 so as to trip the latch 97 and permit the shaft 80 to be returned to its normal position so that the pinion 29 will engage the gear 2S.

As the record is fed from the roller 26 to the receiving` roller 27 the diameter of the roller 27 will be increased as the record is wound thereon, and as the diameter increases, the rock shaft 99 will be moved under the influence of the arm or finger 100 and will mov-e the projection 102 out of enga gement with the latch 97. l/Vhen the record has reached the end of the piece, the shaft 30 will be adjusted by the pneumatic wound on the roller 26, the arm or projection 100 will gradually move toward the periphery of the roller as the diameter of the roller decreases so as to permit the projection 102 to trip the latch 97 in the man-A ner already set forth.

Arranged upon the record supporting frame 25 is a gage 1011- and a suitable indicator 105 is slid-ably mounted with relation to the gage and may be set to any predetermined point with relation to the gage to regulate the speed of t-he record. rIlhis indicator may be held in its adjusted posit-ion in any desired or suitable manner, preferably by means of a bar or rod 10G which passes through suitable guides 107. and an aperture in a yielding clip 10S. This clip 10S is adapted to assume a normal position. such as shown more clearly in Fig. 9 of the drawings to grip the bar or rod 106, and when it is desired to adjust the indicator. the clip may be moved to release the bar or rod 106 to permit it to slide freely through the aperture therein, and when properly adjusted, the clip may be released to assume a position to grip the rod.

An arm 109 is pivotally connected by one extremity to the arm or lever 78, and the other end is adapted to move in 'suitable guides 110 and is so arranged that after the indicator 105 has been adjusted and the mechanism started in operation, the extremity 111 thereof will be moved toward the indicator 105 by' means of the collapsing of the pneumatic 81. This adjustment of the parts causes the proper adjustment of the valves 6?), 65, to regulate the suction upon the pneumatic motor 31.

In order to automatically regulate the speed of the motor to vary the speed of the receiving roller 27 which is necessary when the diameter thereof is increased by the record being Wound thereon, so as to feed thc record at a uniform speed throughout its length across the tracker board, there is provided an adjustable stop which is preferably -in the shape of a rock shaft 112, which is journaled intermediate its ends to the support 113 of t-he indicator 105, and this support 113 has a sliding engagement with a portion of the record supporting frame 25 and is held against displacement by means of the clip 10S, as shown more clearly in Figs. 7 and 9 of the drawings. The rock shaft 112 is journaled in the support 11?) to extend transversely of an ofl'set portion 11st of the rock shaft 99 which forms a crank, and one extremity 115 of the rock shaft 112 is adapted to extend across and rest upon the cranked portion 114 of the shaft 99 in the manner more clearly shown in Figs. 5 and 7 of the drawings, and the extremity 11G of the shaft 112 is adapted to project and stand within the path of movev ment of the extremity 111 of the arm 109 as it moves toward the indicator 105. The movement of the rock shaft 112 is controlled by the cranked portion 1141 of the rock shaft 99, and when the pneumatic 81 iseollapsed on starting the machine, the ex tremity 111 of the arm 109 will engage and rest against the extremity 116 of the shaft 112. as shown more clearly in dotted lines in Fig. 1 of the drawings.

With this improved arrangement it will be apparent that the extremity 11G will prevent the entire collapse of the pneumatic 81, and the rock shaft 99 will, through the medium of its cranked portion 1141, permit the rock shaft 112 to move under the influence of the pneumatic 81 to slow down the motor by adjusting the tempo valve 63 to close the port G2 and open the valve 05 to admit atmosphere to lower the tension, inasmuch as the shaft 99 is controlled by the increasing diameter of the record receiving roller 27. During the playing of the piece the diameter of the receiving roller is constantly being increased by the record being wound thereon and as the diameter of the roll increases the lever 100 will be acted upon to lower the crank 114., the extremity 116 of the rock shaft 112 thus permitting the extremity '111 of the varm 109 to gradually move toward the indicator 105, and as the extremity is so moving, the pneumatic 81 is being gradually collapsed. When the record has been entirely wound upon the receiving roller 27 the extremity 116 of the rock shaft 112 will have reached the limit of its movement toward the indicator 105, at which point the pneumatic 81 will have become entirely collapsed, which movement will close the port 62 in the housing 56 and shut off the suction from the motor at the same time the valve 65 will be unseated to open the port 64 to supply outside air to the suction mechanism, and when the suction in the pneumatic 81 is relieved, the spring 8O will return the valve 63 to its normal position to open the port 62 and close the port 64, which movement takes place at the time when the member 37 is shifted to permit the pneumatic 84 to be collapsed to unseat the valve 90 to relieve the suction in the air duct or channel 20. y

From the above description it is thought that the operation of this mechanism will be fully understood, but, briefly stated, it is as follows: The normal position ofthe pinion 29 is in engagement with the gear 28, so that when the shaft 30 is rotated the spool 27 will be rotated to wind the record thereon. The normal position of the member 37 is shown in Fig. 1; that is, so that the clutch member 39 will be moved away fromclutch member 35 and the member 37 will close the inlet opening 87 of the tubular member 86. With the parts in this position, and when the pumps (not shown) are actuated to create a suction in the suction ducts or channels 20, the exhaust mechanism will create a suction through the tubular member 76 and equalizer 52. At the same time the motor 31 will be operated by exhausting the air therefrom through the flexible member 51. The suction in the suction chamber 2O will also exhaust the pneumatic 81, and the variation of the suction in this pneumatic 81 will cause the arm 78 to be moved in a direction against the tension of the elastic member 80, and when the suction decreases the elastic member 80 will move the arm 78 in the opposite direction. Inasmuch as the slide valve 63 in the equalizer 52 is connected with the arm 78, it will be manifest that the oscillatory movement of the arm 78 will be imparted to the valve 63 and this will cause the valve 63 to cover and uncover the opening 62, while at the same time the valve 65, which is connected for movement with the valve 63, will i be adjusted to open or close the opening 64 to control the admission of outside air. As the air is exhausted from the motor 31 through the tubular member 51 by exhausting the controller 52, the exhaust air will iow into the compartment 69 through the opening 70, above the partition 54, through the opening 60, into the compartment 58,

through the opening 62, into the compart- 84 by means of the member 85 (see Fig. 1).

When the member 37 is in the position shown in Fig. 1 the tubular member 86 will be closed to the outside air, and this pneumatic will be in the position shown in Fig.

` 3, and will remain in such position until the member 37 is shifted. When an opening in the record 24 registers with the opening in Vthe trackerboard, with which the tubular `member 47 communicates, outside air will be admitted into the pneumatic 44, and the `latter will be operated to draw down on the rod 48, and this will shift the end of the .iexible shaft 30 so as to move the pinion 29 out of mesh with the gear 28. This movement of the shaft 30 will cause the member 37 to be shifted longitudinally, and the pin andV slot connection 37a 37b of the member 37 with the record supporting frame will also cause a lateral movement o-f the member 37 so as to move the clutch member 39 into a position to coperate with the clutch member 35. This shifting of the member 37 will open the tubular member 86 to the outside air, and this air entering the pneumatic 84 will cause the latter to operate so as to raise the arm 93 (see Figs. 3 and 4) to rock the Valve 90, and thereby admit outside air into the suction chest 20, through the opening 89. After the record has been wound upon the spool 27, the increase in diameter of the spool will'rock the arm 100 (see Fig. 6), and this in turn will rock the shaft 99 to shift t-he catch 90 against the tension of the elastic member 98, thereby releasing the member 37 which has been locked in its adjusted position by the catch 37, and the member 37 will return to its normal position, to wit, that shown in Fig. 1, to close the opening 87 of the member 86. This will also permit the pinion 29 to be shifted into engagement with the gear 28, when the parts will again be in their normal position.

1n order that the invention might be ful-ly understood by those skilled in the art, the details of the foregoing embodiment thereof have been thus specifically described, but

What I claim as new and desire to secure by Letters Patent is- 1. 1n combination in a device of the class described, a record, a roller upon which the `record is adapted to be wound, a pneumatic motor for operating the roller, an equalizer for controlling the motor, actuating means for the equalizer, and a compensating device separate from said actuating means and engaging the record sheet as thelatter is wound upon the roller for controlling the operation of the said actuating means to vary the speed of the motor to compensate the varying movement of the record during such winding.

2. In combination in a device of the class described, a record, a roller upo-n which the record is adapted to be wound, a pneumatic motor for operating the roller, an equalizer for controlling the motor, actuating means for the equalizer, and a compensating device separate from said actuating' means and engaged by the record as the latter is wound upon the roller for automatically controlling the operation of said actuating means to vary the speed of the motor to compensate the varying movement of the record during such winding.

3. In combination in a device of the class described, a record, a record roller, a receiving roller upon which the record is adapted to be wound, compensating` means for controlling the receiving roller, rewinding mechanism for the record, and means for adjusting said mechanism to rewind the record, means for locking the rewinding mechanism in its adjusted position, said compensating means including means for releasing the re-winding .mechanism when the record is unwound from the receiving roller.

4t. In combination in a device of the class described, a record, a roller upon which the record is adapted to be wound, a motor for operating t-he roller, and compensating means for controlling the roller, said compensating means including a regulator for the motor, a rock shaft and connections for controlling the regulator, and means operatively connected to the shaft and adapted to be adjusted by the record as the latter is being wound upon the receiving roller to rock the shaft.

5. In combination in a device of the class described, a record, a roller upon which the record is adapted to be wound, a motor for operating the roller, and compensating means for controlling the roller, said compensating means including a regulator for the motor, a rock shaft and connections for controlling the regulator, mea-ns operatively connected to the shaft and adapted to be adjusted by the record as the latter is being wound upon the receiving roller to rock the shaft, an adjustable stop operatively related to the shaft, and means operatively connected to the regulator and adapted to engage the said stop.

6. In combination in a device of the class described, a record, a roller upon which the record is adapted to be wound, a motor for operating the roller, compensating means for controlling the' roller, said compensating means including a regulator for the motor, a cranked shaft, means operatively related to the shaft and adapted to be moved by the record as the latter is being wound upon the roller to rock the shaft, an adjustable stop for controlling the speed of the motor, a movable support for the stop, said stop being adapted to engage the crank of the shaft and means operatively connected to the said regulator and adapted to engage the said stop whereby the movement of the shaft will permit the said stop to be shifted and the regulator to be adjusted to compensate the varying movement of the record while being wound upon the roller.

7. In combination in a device of the class described, a record, a roller adapted to receive the record, a motor for operating the roller, compensating means for controlling the roller, including an equalizer for the motor, a movable stop, a member operatively connected to the equalizer and adapted to engage the stop whereby the equalizer will be adjusted when the stop is moved, and means for controlling the movement of the sto 81.) In combination in a device of the class described, a record, a roller adapted to receive the record, a motor for operating the roller, compensating means for controlling the roller, including an equalizer for the motor, a movable stop, a member operatively connected to the equalizer and adapted to engage the stop whereby the equalizer will be adjusted when the stop is moved, means for controlling the movement of the stop, and means controlled by the record for regulating the movement of the stop.

9. In combination in a device of the class described, a record, a roller adapted to receive the record, a motor for operating the roller, compensating means for controlling the roller, including an equalizer for the motor, a stop, a support for the stop and with relation to which the stop is movable, means for adjusting the support to cause the motor to operate at a predetermined speed, a cranked shaft adapted to be engaged by the stop to retard the movement of the latter with respect to its support, a member operatively connected to the equalizer and adapted to engage the stop, and mea-ns for rocking the shaft whereby the equalizer will automatically vary the speed of the motor.

10. In combination in a device of the class described, a record, a roller adapted to receive the record, a motor for operating the roller, compensating means for controlling the roller, including' an equalizer for the motor, a stop, a support for the stop and with relation to which the stop is movable,

means for adjusting the support to cause l equalizer Will automatically vary the speed the motor to operate at a predetermined of the motor.

speed, a cranked shaft adapted to be en- In testimony whereof I have signed my gaged by the stop to retard the movement of name to this specification, in the presence of 15 the latter with respect to its support, a two subscribing Witnesses, on this 30th day member opratvely connected tlo the equalof December A. D. 1907.

izer and a apted to engage t e stop, and

means operatively connected to the shaftl EUGENE T' TURNEY and adapted to be engaged and moved by i the record as the latter s being Wound upon l the roller to rock the shaft, whereby the W'tnesses:

J. H. JOCHUM, Jr., M. W. CANTWELL.

Copies o! this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Wmhington, D. C. 

